Abstract: Pinhole and blister formation during autodeposition coating of active metal objects, particularly galvanized steel, other zinciferous surfaces, and even ordinary steel that has been abraded, scratched, or otherwise strained, can be greatly reduced by exposing the active metal surfaces to a solution containing cystine before using a autodeposition process itself, or by adding cystine to an otherwise conventional autodeposition composition.
Abstract: A lubricant and surface conditioner for formed metal surfaces, particularly beverage containers, which reduces the coefficient of static friction of said metal surfaces and enables drying said metal surfaces at a lower temperature.The conditioner is a water-soluble organic material selected from a phosphate ester, alcohol, fatty acid including mono-, di-, tri-, and poly-acids; fatty acid derivatives such as salts, hydroxy acids, amides, esters, ethers and derivatives thereof; and mixtures thereof.
Abstract: Iron phosphating solutions without accelerators give excellent quality coatings on cold rolled steel and galvanized steel substrates for promoting adhesion of subsequent paint and similar coatings, when the solutions include at least 0.01 g/L of dissolved anionic titanium.
Abstract: A process for the production of alkyl polyoxyethylenes showing improved low-temperature behavior, by reaction of alcohols with ethylene oxide at elevated temperature in the presence of basic alkali metal compounds as catalysts and subsequent neutralization of the alkaline catalyst with acids, which under prior art practice was impractical because of clogging of reaction vessels and equipment associated with precipitation of salts during neutralization, is made practical by adding a finely divided solid to serve as a precipitation control agent during neutralization. The finely divided solids used are, in particular, organic and/or inorganic materials known in the prior art as filter aids, such as kieselguhr and sawdust or other finely divided cellulose.
Type:
Grant
Filed:
January 25, 1989
Date of Patent:
December 3, 1991
Assignee:
Henkel Kommanditgesellschaft auf Aktien
Inventors:
Karl Schmid, Alfred Meffert, Klaus Friedrich, Michael Langen, Klaus Herrmann
Abstract: A metal treatment solution comprising an effective amount of a soluble or dispersible compound which is a derivative of a polyphenol. Novel derivatives of polyphenol compounds useful in the treatment of the surface of metal articles is provided. Novel surface treatment solutions or dispersions, and methods for using these solutions is provided. Carbohydrate-modified polyphenol compounds are utilized in the present invention. The molecular weight of the polyphenols used in the preperation of derivatives of the present invention are in the range of about 360 to about 30,000 or greater. The resulting derivatives will typically have a molecular weight of up to about 2,000,000 with molecular weight within the range of about 700 to about 70,000 being preferred.
Type:
Grant
Filed:
August 24, 1990
Date of Patent:
November 26, 1991
Assignee:
Henkel Corporation
Inventors:
Andreas Lindert, John R. Pierce, David R. McCormick, William D. Zimmermann
Abstract: Contact of acid or alkaline cleaned aluminum surfaces, particularly cans, with a water based composition containing a combination of (i) alkoxylated phosphate esters, (ii) ions of aluminum, zirconium, iron, tin, and/or cerium, (iii) a metal etching component, and (iv) a combination of alkoxylated alcohol and alkoxylated alkyl phenol emulsifiers, gives the surface after drying lowered surface friction without loss of high quality printability and lacquer adhesion and removes any brown spotting on the cans that may have developed during the cleaning or post-cleaning rinses. The cans after treatment are substantially free from any water breaks when rinsed with water.
Abstract: Substituted diphenols, phenyl ethers containing two oxygen atoms attached to a benzene nucleus, and naphthols are more practically effective than previously known additives in stabilizing tin (II) salts, in electrolyte solutions useful for coloring anodized aluminum by electrolysis therein, against oxidation to tin(IV) by reaction with ambient oxygen. Preferred additives include 2-tert-butyl-1,4-dihydroxybenzene, methylhydroquinone, trimethylhydroquinone, 4-hydroxynaphthalene-2,7-disulfonic acid, and p-hydroxyanisole. If p-toluenesulfonic acid or napthalene sulfonic acid are also used in the electrolyte, the throwing power can be greatly improved.
Abstract: A metal treatment solution comprising an effective amount of a soluble or dispersible compound which is a derivative of a polyphenol. The present invention comprises novel derivatives of polyphenol compounds useful in the treatment of the surface of metal articles. The present invention also encompasses novel surface treatment solutions or dispersions, and methos of using these solutions or dispersions. The compositions of the present invention include amine oxide containing polyphenol compounds and derivatives thereof. The molecular weight of the polyphenols used in derivatives of the present invention have molecular weights of from about 360 to about 30,000 or greater. The resulting derivatives of the present invention typically have a molecular weight of up to about 2,000,000 with molecular weights within the range of about 700 to about 70,000 being preferred.
Type:
Grant
Filed:
September 26, 1990
Date of Patent:
November 5, 1991
Assignee:
Henkel Corporation
Inventors:
Andreas Lindert, John R. Pierce, David R. McCormick
Abstract: An effective autodeposition bath with low volatile organic compound emissions can be compounded with polymer solids made by polymerizing a mixture of monomers consisting of certain acrylates and other monomers. E.g., a suitable mixture is, in percents by weight, 44% butyl acrylate, 36% acrylonitrile, 10% styrene, 7% methacrylic acid, 2% of the methyl ether of methacrylamide, and 1.5% of hydroxyethyl acrylate.
Abstract: Adhesives containing some bifunctional and some at least trifunctional epoxide compounds, photoinitiators, and acrylates of methacrylates corresponding to general formulaCH.sub.2 =C(R.sup.1)-CO-(OC.sub.m H.sub.2m).sub.n -OR.sup.2in which R.sup.1 is hydrogen or methyl and R.sup.2 is a hydrocarbon radical containing a cationically cleavable oxacycloalkyl or oxacycloalkenyl group, continue to harden in darkness after their hardening has been photoinitiated, and thus can produce strong bonds between opaque substrates, when the substrates are coated with the adhesives, the adhesive coatings are exposed to light to initiate the hardening, and the coated substrates are pressed together within a short interval before the hardening of the photoinitiated adhesives advances to the gel point.
Type:
Grant
Filed:
March 2, 1989
Date of Patent:
October 15, 1991
Assignee:
Henkel Kommanditgesellschaft auf Aktien
Inventors:
Rene-Andres A. Gonzalez, Heinz-Christian Nicolaisen, Lothar Kammer
Abstract: Radiation curable compositions containing outstanding reactive diluents have been developed. The diluents are lower alkyl ether acrylates and methacrylates of particular alkoxylated and non-alkoxylated polyols.Examples are mono-methoxy trimethylolpropane diacrylate, mono-methoxy neopentyl glycol monoacrylate and mono-methoxy, ethoxylated neopentyl glycol monoacrylate having an average of about two moles of ethylene oxide.
Type:
Grant
Filed:
January 30, 1990
Date of Patent:
October 1, 1991
Assignee:
Diamond Shamrock Chemical Company
Inventors:
Francis A. Higbie, Robert A. LieBerman, Ira M. Rose
Abstract: By using an aqueous solution containing a phosphoric acids or phosphate salts together with carboxylic acids containing at least two carboxyl groups per molecule along with conventional mass finishing, a wide variety of metal parts may be simultaneously deburred, cleaned, and provided with a surface with good resistance to corrosion in humid air. The solution used preferably also contains non-ionic surfactant, corrosion inhibitor, and, for use in hard water areas, a water hardness stabilizer.
Type:
Grant
Filed:
January 13, 1989
Date of Patent:
September 10, 1991
Assignee:
Henkel Kommanditgesellschaft auf Aktien
Inventors:
Juergen Geke, Hermann Drosdziok, Herbert Wievelhoff
Abstract: Effective, titanium-free agents for activating metal surfaces prior to phosphating these surfaces with phosphating baths containing zinc ions can be made by reacting alkali metal phosphates with 1,1-diphosphonic acids and their alkali metal salts and/or poly(aldehydocarboxylic acids) and their alkali metal salts.
Type:
Grant
Filed:
April 28, 1989
Date of Patent:
August 13, 1991
Assignee:
Henkel Kommanditgesellschaft auf Aktien
Inventors:
Karl-Dieter Brands, Helmut Endres, Peter Christophliemk, Wolf-Achim Roland
Abstract: Prior art processes for removal of one or more contaminant elements, including at least one of antimony, bismuth, and arsenic and optionally including iron, from electrolyte solutions of primary metals by solvent extraction with an organic phase including a hydroxamic acid, then precipitating at least part of the contaminant elements from the organic phase as sulfides, are improved by an additional step of re-extracting the organic phase with water before precipitating the sulfides from it. At least part of any arsenic present and, if desired, part of any antimony as well, may be re-extracted in this manner and subsequently recovered if desired, so that the overall process is made more economical.
Type:
Grant
Filed:
October 27, 1989
Date of Patent:
August 13, 1991
Assignee:
Henkel Kommanditgesellschaft auf Aktien
Inventors:
Ralf Kehl, Werner Schwab, Robert B. Sudderth, Gary A. Korkosky
Abstract: A metal treatment solution comprising an effective amount of a soluble or dispersible compound which is a derivative of a polyphenol. A composition for treatment and after treatment of metal with polyphenol compounds is provided. The present invention includes novel derivatives of polyphenol compounds which are useful in surface treatment solutions or dispersions. A method for using these solutions or dispersions is also provided. The molecular weight of the polyphenols used to form the derivatives of the present invention are in the range of from about 360 to 30,000 or greater. The resulting derivatives of the present invention typically have a molecular weight of up to about 2,000,000 with molecular weights within the range of about 700 to about 70,000 being preferred.
Type:
Grant
Filed:
December 4, 1987
Date of Patent:
August 13, 1991
Assignee:
Henkel Corporation
Inventors:
Andreas Lindert, John R. Pierce, David R. McCormick, William D. Zimmermann
Abstract: A hair treatment medium application device comprising an applicator head adapted for either fixed or rotatable mounting upon a container, optionally through an adapter, in which a dispensing mouth in the applicator is in fluid communication with the container, and in which the mouth is surrounded by bristles and one or more guide tines.
Type:
Grant
Filed:
January 26, 1988
Date of Patent:
July 30, 1991
Assignee:
Henkel Kommanditgesellschft auf Aktien
Inventors:
Detlef Hollenberg, Hans Schneider, Georg Weihrauch
Abstract: Platinum complexes of the general formula I[(R.sup.1 NH.sub.2).sub.n Pt].sub.q Y.sub.m X.sub.p (I)in which Y is a phosphonic acid ligand, and the preparation thereof, are described. The platinum complexes are suitable as active substances in pharmaceuticals, in particular for controlling cancers.
Abstract: Contact of acid or alkaline cleaned aluminum surfaces, particularly cans, with a water based composition containing a combination of (i) ethoxylated phosphate esters, ions of aluminum, zirconium, iron, tin, and/or cerium, and (iii) a metal etching component gives the surface after drying lowered surface friction without loss of high quality printability and lacquer adhesion and removes any brown spotting on the cans that may have developed during the cleaning or post-cleaning rinses.
Abstract: The invention seeks to improve the preheating resistance and high temperature resistance during vulcanization of a cement for the vulcanization of rubber onto metals. Such cements conventionally contain metal-binding polymers, dinitrosobenzene, organic solvents and, optionally, other components, such as acid-binding agents and reinforcing fillers. The goals of the invention are achieved by partial replacement of the usual metal-binding polymers by substituted aromatic compounds bearing two or more substituent groups having the formula --CH.sub.2 Br.
Abstract: The adhesion of, and corrosion protection provided by, organic surface coatings to underlying metal can be significantly improved if the degreased, etched, and pickled metal surfaces to be coated are first treated with an aqueous solution and/or dispersion of aluminum-zirconium complexes, which are obtainable as the reaction-product of a chelated aluminum component, an organo-functional ligand component, and a zirconium oxyhalide component, with the organo-functional ligand being chemically bonded to the chelated aluminum unit and the zirconium unit in the complex, and are subsequently treated with dilute aqueous solutions, emulsions, and/or dispersions of one or more inorganic and/or organic film-forming materials prior to coating the surfaces with conventional organic surface coatings.
Type:
Grant
Filed:
August 24, 1989
Date of Patent:
June 25, 1991
Assignee:
Gerhard Collardin GmbH
Inventors:
Cornelia Finnenthal, Wolf-Achim Roland, Roland Morlock